# A student accidentally poured 2 liters of 20% acid solution into a container having 10 liters of 15% acid solution. What is the concentration of the new solution?

Apr 26, 2017

Almost 16%

#### Explanation:

$\left(2 \cdot 0.20\right) + \left(10 \cdot 0.15\right) = 12 \cdot x$

12 liters is the final volume and x is your final percentage.

If you solve the equation, you will get x:

$x = \frac{0.4 + 1.5}{12}$

$x = 0.158$

Or x=16% (almost 16%)